Tuning the strange quark mass in lattice simulations

Details Tuning the strange quark mass in lattice simulations Tuning the strange quark mass in lattice simulations

2010-03-04

arxiv.org/abs/1003.1114v2

Physics

High Energy Physics

High Energy Physics - Lattice

13 pages, 4 figures

Scientific paper

QCD lattice simulations with 2+1 flavours typically start at rather large up-down and strange quark masses and extrapolate first the strange quark mass to its physical value and then the up-down quark mass. An alternative method of tuning the quark masses is discussed here in which the singlet quark mass is kept fixed, which ensures that the kaon always has mass less than the physical kaon mass. It can also take into account the different renormalisations (for singlet and non-singlet quark masses) occurring for non-chirally invariant lattice fermions and so allows a smooth extrapolation to the physical quark masses. This procedure enables a wide range of quark masses to be probed, including the case with a heavy up-down quark mass and light strange quark mass. Results show the correct order for the baryon octet and decuplet spectrum and an extrapolation to the physical pion mass gives mass values to within a few percent of their experimental values.

Affiliated with

Also associated with

No associations

Rating

Tuning the strange quark mass in lattice simulations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Tuning the strange quark mass in lattice simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tuning the strange quark mass in lattice simulations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-560571